Winding of yarns upon beams



Oct. 23, 1928. 1,688,800

J.BRANDWOOD E AL WINDING OF YARNS UPON BEAMS Filed may 2s, 1925 2Sheet-Sheet '1 Oct. 23, 1928. 1,688,800

J. BRANDWOOD ET AL WINDING OF YARNS UPON BEAMS fi u 5' u 1 8 Lzven/orsl-A W M r y ke/ir Allow/q Patented Oct. 23, 1928.

UNITED STATES PATENT OFFICE.

JOHN BRANDWOOD, OF SOUTHPOR'I, ENGLAND, AND JOSEPH BRANDWOOD, OF WABAN,MASSACHUSETTS.

WINDING OF YARNS UPON BEAMS.

Application filed May 23, 1925, Serial No. 32,513, and in Great BritainJanuary 9, 1925.

In the winding of yarns upon beams the surface of which isnon-continuous, as for instance by being formed of bars or the likewhich are longitudinal to the beam to enable the yarns to be dyed in adyeing vessel of the type described in the specification to UnitedStates Letters Patent N 0. 1,174,662, there is a danger of the beambarrel and also the yarns being wound thereon being damaged, owing to acertain bumpiness when the bars of the beam barrel come into contactwith the surface of the usual friction winding drum employed for thepurpose of winding. The present invention has for object a means foravoiding this and for winding the yarns on the beam in an even manner assmoothly as on beams having a continuous yarn bearing surface.

According to the invention we place the beam in the winding apparatus asusual parallel with and adjacent to the winding drum but in such amanner that its yarn bearing surface does not touch the winding drum,and rotate the beam by independent means making driving contact with thebeam hubs or bosses until a sufficient thickness of yarn is wound on toenable the outer surface of the wound yarn to make contact withthewinding drum. WVinding then proceeds by friction with the windingdrum as usual, the preliminary driving means for the beam beingautomatically knocked oif as soon as contact between the winding drum,and the yarn wound on the beam by such preliminary driving means, hasbeen established.

Methods of carrying the invention into effect will now be fullydescribed with reference to the accompanying drawings, wherein Figure 1is a side elevation of part of a winding apparatus showing the beam inposition for winding; Figure 2 is a partial front View of the beam andaccessories, taken from the right of Figure 1; Figure 3 is a similarview to Figure 1 of a modification of the driving means and Figure 4: isa partial plan View of Figure 3, showing the apparatus frame in sectionand the pivoted beam bearing arm being removed for clearness.

The beam illustrated in the figures is one havin specially formedopenends to enable it to be fitted within a dyeing kier for the fluidtreatment of the yarns ultimately wound thereon, the hubs or bossesbeing approximately equal to but slightly greater than the diameter ofthe beam barrel. As will be understood from the description whichfollows however, any beams may be provided with rings or the like on itsbosses to attain this substantial similarity in diameters of bosses andbeam barrel to enable the method of winding, forming the subject of thisinvention, to be carried out.

Referring to Figures 1 and 2, 3 is part of the beaming frame, 4- an armpivoted thereon with a bearing 5 to receive the necks of the shaft 6 ofa beam 7 having a tubular end boss 8 and flange 9. It will be understoodthat, as usual, two armsa, one on each side of the frame, are provided,these arms being of any known type or form; and that the other end ofthe beam 7-not shown-is similar to that illustrated. 10 indicates yarnspassing through reed 11 and down to the beam 7 as for instance fromanother beam fitted rotatably on the other side of the frame 3, and notshown. 12 is the winding drum which may be of wood covered with canvasas usual, and it is mounted on a shaft 13 which is ournalled in bearings14 in the frame 3. Any known means of driving the shaft 13 may beemployed, one of the spur wheels of a drive therefor being indicated at15.

On the shaft 13 of drum 12 at either side of the said drum, is fitted atubular sleeve or boss 16 which carries a disc 17 which disc has aperipheral groove formed therein to receive rings of leather or the likeas indicated at 18, to form a friction driving edge. These rings aresecured together and within the groove by means of rivets 19 or by othersuitable means.

When the beam 7 is placed in position in the apparatus the outer portionof the boss on each side of the said beam makes ClllVll'lg contact withthe driving edge of the disc 17 on that side, resting upon the said discby its own weight. A very efficient driving contact is thus established.The winding drum shaft 13 being then started, yarn 1O begins to windupon the rotating beam. 7 and the winding is continued in this manneruntil a suflicient thickness of yarn has been wound upon-the beam toallow of the outer surface of such layer making contact with the surfaceof the winding drum 12. lVhen that point is reached and the layer ofyarn continues to increase the beam begins to lift owing to theincreasing thickness of the yarn layer upon the beam, and drivingcontact between the l O O beam on that side.

discs 17 and beam bosses 8 is thus broken, the winding then continuingas usual by frictional contact of the yarn with drum 12.

Any desired and convenient thickness of yarn may be wound upon the beamby the means described before the. winding drum comes into operation. Inapparatus arranged as in the drawings, the thickness of this layer willbe equal to the distance between the beam surface at 7 and the windingdrum before the preliminary winding is commenced, and this distance isdetermined by the diameter of the discs 17 in relation to that of thewinding drum 12 and the relation of the diameters of the bosses 8 to thediameter of the beam body'l'. Variations of these relative dimensionswill give variation in the thickness of yarn wound on before thewinding. drums makes contact with the said layer, as will be understood,with differences in the preliminary speed of winding and the subsequentspeed of winding by contact with the Winding drum. Our system howeverensures that the difference in all cases shall be slight. If the windingdrum and the driving discs are of equal radius, for instance, the beambody twelve inches in diameter, and the end bosses 8 fourteen inches indiameter, then the thickness of layer wound on as a preliminary by theaction of the driving discs will be one inch, before the winding drumtakes up the drive by friction on the yarns and the beam commences tolift from the said discs by the increasing thickness of the yarn layer.

A further method of carrying out the invention is illustrated in Figures3 and it. the beam being of the same relative dimensions as in the firstmodification. In these Figures 3 and 4, a fork bracket 20 is secured tothe framing 3 and in this bracket are provided bearings for the shafts21 and22 to which are keyed the two small discs 23 and 2a, each of whichhas a frictional driving edge, these discs being in continual frictionalcontact. Driving discs 17 on the winding drum shaft 13 is in continuousfrictional contact with the smaller disc 23 and the other small disc isso placedthat when the beam is in position the boss 8 of the said beamrests upon the said disc 24 and makes frictional driving contact withthe edge thereof. The discs 17 and 23 and 24 are of course duplicated onthe other side of the apparatus, to drive the boss of the Disc 23 isrendered yieldable by mounting its shaft 21 in a bearing .block 25 freeto slide in a slot 26 in the bracket 20 against the pressure of a spring27.

In this latter modification the initial winding speed of the beam maybe, if the hubs and beam barrel are the same diameter, exactly the sameas the peripheral speed of the winding drum. As the yarn layer growsupon the beam barrel the tension on the yarn is tightened slightly andwhen the said yarn layer makes contact with the winding drum surface forthe winding operation to continue in the usual manner, the transitionfrom one speed to theother is easily effected without rubbing frictionon the yarns, owing to the slight difference in the yarnspeeds. Byarranging the relative diameters it will be understood that the initialwinding speed for the yarn may be slightly less than the winding drumsurface speed, the speed gradually rising until, when the yarn layer onthe beam makes driving contact with the winding drum, the speed isexactly that of the winding drum, the drum thus taking over withoutstrain or rubbing on the yarns.

lVe claim 1. In an apparatus for the winding of yarns upon a flangedyarn beam with bosses, the diai'neter of which are approximately thediameter of the yarn barrel of the beam, a friction driving drum, ashaft upon'which the said drum is mounted, bearing arms pivoted to bearthe yarn beam parallel to the driving drum shaft, and a disc mounted onthe shaft at either side of the friction drum and spaced apart therefromto allow the reception of the flanges of the beam when borne in thepivoted arms in the respective spaces between the disc and the drum, thediameters of the discs and friction driving drum being approximatelyequal and the diameters of the beam bosses and of the beam barrel beingin such relation that the beam barrel is clear of the friction drivingdrum when the said beam rests by its bosses upon the discs.

2. In an apparatus for the winding of yarns upon a flanged yarn beamwith bosses, the diameters of which are approximately the diameter ofthe yarn barrel of the beam, a friction driving drum, a shaft upon whichthe said drum is mounted, bearing arms to bear the yarn beam parallel tothe driving drum shaft, a disc mounted on theshaft at either side ofthefriction driving drum and approximately equal in diameter to the saiddrum, each such disc forming the first element of a train of frictiondiscs mounted at each side of the driving drum and spaced aparttherefrom, the trains of discs, the beam bosses and the beam barrelbeing in such relation that the beam barrel is clear of the frictiondriving drum when the beam bosses rest upon the end elements of thefriction disc trains.

I11 testimony whereof we have hereunto set our hands.

JOHN BRANDWOOD. JOSEPH BRANDWOOD.

